Following are comments from European customers affected by the cut-off in gas supplies by Russia's gas export monopoly Gazprom to its neighbour Ukraine over a pricing dispute:
There is no real risk to Russian gas supplies to European Union industry from the Russia-Ukraine gas dispute so far, the EU Commission said on Monday.
Gas supplies to Austria on Monday were not affected, the national regulator and a spokeswoman from the economy ministry, said.
Bulgarian saw a 10-15 percent drop in Russian natural gas supplies on Monday after a price dispute between Ukraine and Russia affected supplies to Europe, Bulgaria's state gas monopoly Bulgargaz said.
Gazprom's Balkan distribution unit said exports to Bulgaria fell by 7.2 percent in the 24 hours to Monday morning.
Croatia's pipeline operator Plinacro said on Monday Russian gas supply to Croatia was back to normal after being cut by 7 percent over the weekend.
Gas supplies to the Czech Republic from Russia are back to full amount after showing a 5 percent drop on Sunday, a spokesman for the country's main supplier said on Monday.
Russian gas deliveries to France have been unaffected so far, French gas utility GdF Suez said on Monday.
The German government and major gas companies in Europe's biggest economy said on Monday the dispute was not yet straining their natural gas supply.
Delivery of Russian gas to Greece has been cut by about one third due to the row between Russia and Ukraine, an official at Greek natural gas operator DEPA, said on Monday.
Deliveries from Ukraine fell by 15.9 percent in 24 hours to Monday morning, according to Gazprom's Balkan distribution unit.
Hungary's gas shipments via Ukraine fell from 1500 GMT on Monday, the country's energy minister was quoted as saying.
The minister expected 30 million cubic metres (mcm) of natural gas on Monday, down from 38 mcm.
Ukraine supplies to Macedonia fell by 28.9 percent from Sunday morning to Monday morning, according to Gazprom's Balkan distribution unit.
Gas deliveries to Poland via Ukraine remained lower by 5 million cubic metres daily on Monday, Poland's dominant gas distributor PGNiG said in a statement on Monday.
Supplies to Romania dropped 33.8 percent from Sunday morning to Monday morning, according to Gazprom's Balkan distribution unit.
Turkey has increased gas deliveries direct from Russia via the Blue-Stream pipeline under the Black Sea to compensate for a slight decline in supplies coming via Ukraine, an official said.
Turkish supplies from Ukraine dropped by 22 percent in the 24 hours to Monday morning, Gazprom's Balkan distribution arm said.